In which U.S. state is Disney World located?

Disney World is located in Florida, specifically near the city of Orlando. This destination is officially known as Walt Disney World Resort and is the largest and most visited recreational resort in the world. Opened in 1971, it encompasses four theme parks: Magic Kingdom, Epcot, Disney's Hollywood Studios, and Disney's Animal Kingdom, as well as numerous hotels, restaurants, and entertainment venues.

While Disneyland is located in California, and there are other theme parks and attractions in Texas and New York, Disney World is distinctly associated with Florida, making it the correct answer. The popularity and scale of Disney World contribute significantly to Florida's tourism industry.